* Re: [PATCH 2/6] rds: Brute force GFP_NOIO
[not found] <20240513125346.764076-3-haakon.bugge@oracle.com>
@ 2024-05-13 18:04 ` kernel test robot
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From: kernel test robot @ 2024-05-13 18:04 UTC (permalink / raw)
To: Håkon Bugge, linux-rdma, linux-kernel, netdev, rds-devel
Cc: llvm, oe-kbuild-all, Jason Gunthorpe, Leon Romanovsky,
Saeed Mahameed, Tariq Toukan, David S . Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Tejun Heo, Lai Jiangshan,
Allison Henderson, Manjunath Patil, Mark Zhang, Håkon Bugge,
Chuck Lever, Shiraz Saleem, Yang Li
Hi Håkon,
kernel test robot noticed the following build warnings:
[auto build test WARNING on tj-wq/for-next]
[also build test WARNING on rdma/for-next net/main net-next/main linus/master v6.9 next-20240513]
[cannot apply to horms-ipvs/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/H-kon-Bugge/workqueue-Inherit-NOIO-and-NOFS-alloc-flags/20240513-205927
base: https://git.kernel.org/pub/scm/linux/kernel/git/tj/wq.git for-next
patch link: https://lore.kernel.org/r/20240513125346.764076-3-haakon.bugge%40oracle.com
patch subject: [PATCH 2/6] rds: Brute force GFP_NOIO
config: s390-defconfig (https://download.01.org/0day-ci/archive/20240514/202405140136.LE0Nk9by-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project b910bebc300dafb30569cecc3017b446ea8eafa0)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240514/202405140136.LE0Nk9by-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405140136.LE0Nk9by-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from net/rds/af_rds.c:33:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/s390/include/asm/elf.h:173:
In file included from arch/s390/include/asm/mmu_context.h:11:
In file included from arch/s390/include/asm/pgalloc.h:18:
In file included from include/linux/mm.h:2208:
include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
509 | item];
| ~~~~
include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
516 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
528 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
537 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from net/rds/af_rds.c:38:
In file included from include/linux/ipv6.h:101:
In file included from include/linux/tcp.h:17:
In file included from include/linux/skbuff.h:28:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
| ^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
| ^
In file included from net/rds/af_rds.c:38:
In file included from include/linux/ipv6.h:101:
In file included from include/linux/tcp.h:17:
In file included from include/linux/skbuff.h:28:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
| ^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
| ^
In file included from net/rds/af_rds.c:38:
In file included from include/linux/ipv6.h:101:
In file included from include/linux/tcp.h:17:
In file included from include/linux/skbuff.h:28:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
692 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
700 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
708 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
717 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
726 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
735 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> net/rds/af_rds.c:315:15: warning: variable 'noio_flags' set but not used [-Wunused-but-set-variable]
315 | unsigned int noio_flags;
| ^
18 warnings generated.
vim +/noio_flags +315 net/rds/af_rds.c
310
311 static int rds_cancel_sent_to(struct rds_sock *rs, sockptr_t optval, int len)
312 {
313 struct sockaddr_in6 sin6;
314 struct sockaddr_in sin;
> 315 unsigned int noio_flags;
316 int ret = 0;
317
318 if (rds_force_noio)
319 noio_flags = memalloc_noio_save();
320
321 /* racing with another thread binding seems ok here */
322 if (ipv6_addr_any(&rs->rs_bound_addr)) {
323 ret = -ENOTCONN; /* XXX not a great errno */
324 goto out;
325 }
326
327 if (len < sizeof(struct sockaddr_in)) {
328 ret = -EINVAL;
329 goto out;
330 } else if (len < sizeof(struct sockaddr_in6)) {
331 /* Assume IPv4 */
332 if (copy_from_sockptr(&sin, optval,
333 sizeof(struct sockaddr_in))) {
334 ret = -EFAULT;
335 goto out;
336 }
337 ipv6_addr_set_v4mapped(sin.sin_addr.s_addr, &sin6.sin6_addr);
338 sin6.sin6_port = sin.sin_port;
339 } else {
340 if (copy_from_sockptr(&sin6, optval,
341 sizeof(struct sockaddr_in6))) {
342 ret = -EFAULT;
343 goto out;
344 }
345 }
346
347 rds_send_drop_to(rs, &sin6);
348 out:
349 if (rds_force_noio)
350 noio_flags = memalloc_noio_save();
351 return ret;
352 }
353
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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[not found] <20240513125346.764076-3-haakon.bugge@oracle.com>
2024-05-13 18:04 ` [PATCH 2/6] rds: Brute force GFP_NOIO kernel test robot
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